<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .photo{
            width: 300px;
            height: 300px;
            clip-path: circle(40% at 50% 50%);
            transition: all .5s linear;
        }
        .photo img{
            width: 100%;
            height: 100%;
        }
        .photo:hover{
            clip-path: circle(25% at 50% 50%);
        }
    </style>
</head>
<body>
    
    <div class="photo">
        <img src="./tets.jpg" alt="">
    </div>
</body>
</html>